45217666 has 16 divisors (see below), whose sum is σ = 74600064. Its totient is φ = 20425104.

The previous prime is 45217661. The next prime is 45217681. The reversal of 45217666 is 66671254.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45217661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17280 + ... + 19723.

It is an arithmetic number, because the mean of its divisors is an integer number (4662504).

Almost surely, 2^45217666 is an apocalyptic number.

45217666 is a deficient number, since it is larger than the sum of its proper divisors (29382398).

45217666 is a wasteful number, since it uses less digits than its factorization.

45217666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37065.

The product of its digits is 60480, while the sum is 37.

The square root of 45217666 is about 6724.4082267513. The cubic root of 45217666 is about 356.2619006592.

The spelling of 45217666 in words is "forty-five million, two hundred seventeen thousand, six hundred sixty-six".